- I'll divide the class into two teams.
- We'll shuffle the cards and then deal out 8 cards to each team. As I deal them, I'll place them in the order their drawn on the rack (hence the name RACKO) on the board.
- A student from the first team draws a card and can either discard it or replace one of the cards in his/her team's row.( The goal is to be the first team to get all their cards in order.)
- Now, the second team has a turn. It goes back and forth until one team gets their cards in order.
While the class is playing, I'll be listening to the conversations in the teams. Who seems to have a grasp of the equivalencies? Who doesn't seem to have a clue? Who always seems to consistently offer the correct suggestion? Who remains quiet? Who can replace a card correctly by themselves? Who needs help from the team?
We'll play this a couple of times and then - another day - I'll put students into smaller teams to compete - maybe two person teams and then, eventually, one person playing another. If you plan on doing this, copy each set of cards in a different color; that way, clean up is easy!
The beauty of this game is that it can be adapted quite easily. You can:
- Make a set of all fraction cards if you are working on ordering fractions or on common denominators.
- Make a set of square root cards mixed with whole numbers or even numbers with decimals.
- Make a set of integer cards, mixing positive and negative numbers.
- Make a set of decimal cards. This will really help pull out misconceptions about place value and decimals.